readme: update copyright

Author: Paul Przybyszewski

README.md

@@ -24,6 +24,6 @@ _________________
 Make sure to check out our [official website](https://statch.org/gitbot "Official GitBot website")  
 **If you have any problems or questions, feel free to join [the support server](https://discord.statch.org)**
 
-**© 2020-2022 statch, Not affiliated with** [**GitHub Inc.**](https://github.com/)
+**© 2020-2023 statch, Not affiliated with** [**GitHub Inc.**](https://github.com/)
 
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